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TI-2021-16221 Aliases CVE-2021-38644GHSA-55x8-6f5x-9xx6

Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability

Priority LOW 38Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability

Why it matters now

EPSS 0.02294 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMPEG-2 Video Extension-—No fix listedCNA
  • MPEG-2 Video Extension VendorMicrosoft Affected - Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:mpeg-2_video_extension:*:*:*:*:*:*:*:*before 1.0.42152.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:mpeg-2_video_extension:*:*:*:*:*:*:*:* Versions before 1.0.42152.0 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Remote Code Execution
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
1AffectedNo update listed

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-38644
  2. 2026-10-03 Alias added: GHSA-55x8-6f5x-9xx6

References

Patch 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences